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ASUS motherboard reporting high voltage 20V

post #1 of 6
Thread Starter 
Al right so I booted up my PC this morning and I come back 15 minutes later and my computer is at the post screen saying Asus Anti-Surge has triggered to protect the system. I look inside the bios and its telling the +12V is running at 14V and its marked in red. So I'm thinking my PSU has crapped out so I swapped around my PSU for a different one and its telling me the same thing.

I looked around the internet and people are saying that Asus anti surge is a common problem and its not to be worried about, so I turned the feature off. I booted up AIDU64 and its shows its currently running at 18V and its jumping up and down from 12,14,18 back to 12. I'm assuming the the motherboard sensor is faulty? Is it dangerous to keep running like this? I'm not really sure what do. You think its best to just RMA the board but I'll have to wait few months without a PC.



UPDATE:

My motherboard is now reading 2.2v for i5 2500k but temperature is the same as with v1.3v. My mobo temperature is -63 Celcius lol. Clearly the sensor reading is false.
Edited by Blackcurrent - 11/22/13 at 10:33pm
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Samsung 850 EVO 250GB + X25-M 80GB Noctua NH-D15 Windows 10 MG279Q 1440p 144hz 
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post #2 of 6
Software doesn't read properly, unless a multimeter is saying this then your fine. 18v would have fried your whole PC instantly so its not running that high.
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post #3 of 6
Thread Starter 
Al right that's what I thought. That's the second time this motherboard has problems for me. I've only been having problems with ASUS motherboards lately its damn annoying.
Edited by Blackcurrent - 11/15/13 at 11:22pm
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CPUMotherboardGraphicsRAM
i5 4690k MSI Z97 Gaming 5 GTX 1070 Gaming X HyperX Fury 16GB 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 250GB + X25-M 80GB Noctua NH-D15 Windows 10 MG279Q 1440p 144hz 
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QuickFire TK Cooler Master V750 Logitech G402 HD 558 
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My System
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CPUMotherboardGraphicsRAM
i5 4690k MSI Z97 Gaming 5 GTX 1070 Gaming X HyperX Fury 16GB 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 250GB + X25-M 80GB Noctua NH-D15 Windows 10 MG279Q 1440p 144hz 
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QuickFire TK Cooler Master V750 Logitech G402 HD 558 
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post #4 of 6
I don't think 18V is possible because PSUs contain overvoltage protection that works independently of the voltage protection circuitry, and I've never seen the overvoltage trigger voltage being higher than 15V. Also if the CPU and disk drives are running from the same +12V rail, I would expect 18V to cause the disk's own protection crowbar diode to trigger and not only shut down the disk but also cause the drive's fuse to pop and maybe the crowbar to be destroyed.
post #5 of 6
Asus software does stuff like this when it is polling a sensor something else is. I don't know what you had looking at voltages when Asus interfered, but uninstall it and just use AIDA. I had a similar problem with my sig rig.
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post #6 of 6
Ignore software read sensors. They are usually inaccurate.
 
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Core i5 750 3.99 (190x21) 1.376v Load ASUS P7P55d-E Pro GTX 670 FTW <- Poor overclocker :( 8GB (4x2GB) G.Skill DDR3 1600 
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Gsvlip Dudyrm
(15 items)
 
Oda'maksv
(9 items)
 
CPUMotherboardGraphicsRAM
3770k @ 4.5 1.312 load z77 Sabertooth GTX 1070 Gaming 2126/2249 w/ Hybrid cooler Patriot Viper Xtreme D2 1600  
Hard DriveHard DriveHard DriveOptical Drive
Samsung 850 Pro 1TB 4TB RAID 0 4.5TB RAID 0 <.< DVD drive 
CoolingCoolingOSMonitor
H105 EVGA Hybrid GPU cooler Windows 10 Asus MG279Q - 24" 144Hz 1080p 
KeyboardPowerCaseMouse
Filco Majestic II w/ Cherry Reds Seasonic X 760W CM690 II Adv. Logitech G400 
Mouse PadAudioAudioAudio
Razer Goliath AKG A701 JDS Labs Objective 2 JDS Labs ODAC 
CPUMotherboardGraphicsRAM
Core i5 750 3.99 (190x21) 1.376v Load ASUS P7P55d-E Pro GTX 670 FTW <- Poor overclocker :( 8GB (4x2GB) G.Skill DDR3 1600 
Hard DriveHard DriveOptical DriveOS
Samsung 830 Evo 128GB 2x 2TB  Some DVD drive OSX 10.10.4 
MonitorPowerCaseMouse
Asus 1080P Crap TX 750 HAF 922 G400s 
Mouse PadOther
Apple Keyboard Xbox One controler 
CPURAMHard DriveHard Drive
C2D 2,26GHz under volted @ .978v 8GB  Crucial M4 64GB SSD 500GB Scorpio Black 
OSMonitorKeyboardMouse
OS X 10.0 1280x800 Built-in Trackpad 
Audio
Built-in 
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